blatchly



(No Model. 7 v v zshets- -Sheet 2.

/ A. BLATOHLY & G. KUS'TEL.

' \ORBOONGENTRATOR.

m No.258,879. PatentedJune6,188Z;

UNITED STATES PATENT OFFICE.

AMBROSE BLATGHLY AND KUSTEL, OF SAN FRANCISCO, GAL.

ORE-CONCENTRATOR."

' SPECIFICATION forming part of Letters Patent No. 258,879, dated June6, 1882.

Application filed April 2, 1881. NA model.)

To all whom tt may concern.-

Be it known that we, AMBROSE BLATGHLY and GUIDO KUSTEL, of the city andcounty reference being had to the accompanying draw- Ourinventionrelates to an improved machine for separating the heavy and valuableparticles from the light and worthless portion of ore-pulp, sand, andanriferous earth, and at the same time concentrating the heavy particlesin a body, so that they can be treated by any of the known gold-savingmethods without handling the barren and worthless material.

The objects of the invention are to provide a machine of theabove-mentionedcharacter that will perfectly and effectually separatethe particles passing over the surface of the tables, and providing thelatter with means for separating the pulp or other anriferous' materialintothree or more grades, and, further, sepa rating and'concentratin gthe middlin gs or seeond-grade particles. These objects we attain by theconstruction substantially as shown in the drawings and hereinafterdescribed.

Referring to the accompanying drawings, Figure 1 showsan elevation andlongitudinal section. Fig. 2 shows a plan view with the, upper set oftables. Fig. 3 shows an end view with a pair of tables. Figs. 4 and 5are detail views of the hanger from which the tables are suspended.Figs. 6 and 7 are longitudinal sections, showing details of the tables.A represents any suitable frame-work, having oross-timbersb b, fromwhich the inclined .tables (J O are suspended. The frame is wide Eachtable is suspended by rods 0r hangers d atieach corner, so that thesuspension of each table is independent of the other. We haverepresented three pairs of inclined tables sus-- pended one above theother; but a single pair could be used. The construction of each ta- 5oble and the arrangement of the pairsare the of the construction;

same, so that we will only describe a single palr.

To provide a bed or table that will not warp or become distorted, weconstruct each one inthe following manner: We make the bottom of eachtable of a number of narrow and separate strips of wood laid'closelytogether, and arranged in two layers, one layer running longitudinallyand the other transversely, so that the grain of one layer crosses thatof the other. A wooden pin or metallic nail or screw-is then insertedthrough the center of each cross-layer to secure and bind the stripsfirmly-together. Oross-stripsjj on the bottom and along the sides andends serve to give the required stiltness, and a ledge or rim along thesides and ends of the bed completes the table. Upon this bed, or floorwe place a sheet or layer of india-rubber, J, a portion of, the uppersurface of which is provided with numerousparallel grooves runningtransversely across the bed. A quality of india-rubber which is welladapted for this purpose is that which is com monly used for coveringthe steps of stairs, and which is known'as stair-rubber. The corrugatedportion of this rubber surface only extends from the outer rim of thetable to the middle, or perhaps a little farther toward the oppositeside or rim, leaving a plain smooth surface next to the inner rim.

A slotted plate, 72., is secured upon thc cross-. beam-b of the frameabove each corner of the table 0, and thehanger-rod d passes up throughthe slot. Each hanger-rod has-a block, e,jsecured on its upper end by anut, f. This bloc]; has a V-shaped projection, 9, extending, down wardfrom its lower end. The plate hon one side of the slot has parallelgrooves or notches i made on its upper side, in either of which notchesthe V-shapcd projection 9 will enter and ride as the tables swing backand forth.

By adjusting these rods or hangers in the notches the tables can be madeto strike a harder or lighter blow when they come to gether, while thenut serves to give vertical adjustment. Bumper-bars G G are secured tothe inner edges of the tables 0 G, oppositeeach other, so that thebumper-bars ofthe two tables meet half-way between. them. I

Two vertical shafts, H H, extendupbetween the pairs of tables, one neareach end, and on each shaft, directly between each two tables, is adouble cam, I, which forces the two tables apart laterally as the shaftsrotate, and then releases them, so that they drop back against eachother with a concussion orjar. The shafts H H are driven in a reversedirection by bevelgears K K from a driving-shaft, L, above theframe-work, so that their cams act upon the two tables of each pairsimultaneously, and the friction or thrust of one is counteracted bythat of the other.

In the upper outside corner of each table we secure a pan,M, thebottomof which is a screen, and the pulp is fed to the screen-pan of each pairof tables by divergent spouts N N, which lead from a hopper, 0, intowhich the pulp is shoveied or otherwise deposited. The bottom of thishopper is made inclining from its middle in each direction, so that thepulp is equally divided and distributed to the two tables. Thepan-screens are secured to the tables, so that they receive the samemotion and jar that the tables receive, and this sifts the pulp throughupon the upper outside corners of the concentrating-surfaces. Aperforated water-pipe, 1), passes across the upper ends of the tables,through the perforations of which jets of clear water are ejected uponthe upper end of the tables. The pulp, when thus sifted upon the upperoutside corner of the concentrating-sun face, will begin to flow downtoward its lower end but the constant motion and concussion or jar willcause the heavier particles to separate and settle to the bottoms of thecorrugations and be carried by the concussion directly across the tableto the smooth surface,'0ver which they will move in a diagonal directionto the lower corner of the table. The angle which the particles willtake on moving across the smooth inclined surface will be greater orless according to their specific gravity, because the heavier theparticles the more sensitive will theybe to the concussion orjar, whilethelighter particles, being less sensitive, will move down the inclinein a more nearly direct line.

At the lower end of each table we secure two adjustable dividers, q q,the outer ends of which can be adjusted toward either side of the-table,so as to divide the moving stratum 0, directly to a receptacle where theconcentrations are collected, while the worthless portions in theopposite corner are run to waste. This leaves only the middlin gs whichare contained between the two dividers to be disposed of. Thesemiddlings consist of small particles of sulphurets and the large andheavy particles of worthless matter that do not become separated inpassing over the sur face. The very coarse particles contained in thisgrade will be worthless, because, if they were valuable, their weightwould have carried them into the inner compartment. Hence we mount ascreen, Q, over an opening, a", in the table between the dividers, sothat the fine particles will pass through the screen and down throughthe table, and fall upon the table below, while the large particles thatpass over the screen enter an opening behind the screen and are carriedto waste.

If we use two or more series of parallel inclined tables, the middlingsof the upper ta bles will fall into the middlings-departments of thetables below successively, and, finally, the middlings of all theparallel series will fall upon the upper end of an oppositely-inclinedpair of tables, U, below the upper series. On these tables the middlingsare again subjected to the concentrating action of the lateral vibrationand jar, and they fall from the lower ends of these tables upon anotheroppositelyinclined pair of tables, V, so that by the time they pass overboth these lower tables the concentration will be complete.

The principal feature of ourinvention is the new mode of operation,consisting in sorting and grading the particles upon theconcentrating-surface, and then conducting only the mixed grade to othertables for further separation, so that clean sulphurets are obtainedfrom the first tables, and the remaining series of tables only separateand concentrate the unseparated and unconcentrated particles. Thismethod insures a complete separation and concentration of the particleswithout any additional handling, the particles being automaticallycollected and directed to, upon, and over the successive tables.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is-

1. In an ore-concentrating machine, the two suspended tables 0 (J,mounted in the same plane and provided with bumpers GG,in combinationwith one or more upright shafts, H, arranged between said tables andprovided with cams I, substantially as and for the purpose specified.

2. In a swinging concentrating-table, O, the rod-hangers d, each ofwhich is provided with an adjustable block, 0, and a V-shapedprojection, g, in combination with the slotted supporting-plate h, withits notched upper surface, substantially as and for the purpose described.

3. In a laterally-shaking concentrating-table, the india-rubber surface,one portion of which is corrugated, while the remainder is plain,substantially as described.

4. In an ore-concentrating machine, a series of inclined tablessuspended in pairs, side by -vided witha partially-corrugated and aparside, in combination with mechanism for pro- In witness whereof wehave hereunto set our ducing an outward motion, substantially as handsand seals.

shown and described, said tables being pro- AMBROSE BLATGHLY. [L. GUIDOKUSTEL. [L. s. tially-plain surface, and having at their lowerWitnesses: Y

ends dividers q q and screen Q, substantially as B. J. BURNS,

and for the purpose specified. H. KUSTEL.

